Toxic Consulting

Professional Mold Assessment Services

Footnotes:mold-neutral: At time of testing,
indoor mold spore counts are not significantly higher than
outdoor mold spore counts.

1. The
outdoor sample establishes a baseline for comparative
evaluation of the indoor air samples. Because there are no
federal standards for mold spore count levels in
residences, schools, or other buildings, the mold
inspection industry guidelines are derived from NYC (New
York City) standards and the ACGIH
(American Conference of Governmental Industrial
Hygienists).

Naturally occurring biological materials such as
mold, fungus, and pollen are not regulated by any
government agency, and have no regulatory exposure limits.
Current acceptable industry practice as explained in the
previous paragraph, provides that if the mold measured in
indoor air is substantially different from the mold
measured in outdoor air, the indoor air quality is
considered to be degraded. If the indoor air samples show
elevated levels of mold spores (or inconsistent types of
mold), such samples are considered positive for mold.
Positive samples indicate the need for additional
investigation, supplemental testing, or corrective
measures. The theory is that any mold in the house comes
from outdoors. If there is more indoors, it must come from
indoors.

Air-O-Cellô is a trademark of
Zefon International, Inc.
DustChek™ and WallChek® are trademarks of Aerotech
Laboratories, Inc.